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News and Announcements

Completion of Bankable Feasibility Study (BFS) by Altech Chemicals

  • Published July 27, 2015 10:23AM UTC
  • Publisher Wholesale Investor
  • Categories Company Updates

24th July 2015, Altech Chemicals

Our Vision

To be a world leading producer of high purity alumina (HPA)

Sapphire Gemstone

  • Sapphire & Ruby – natural form of high purity alumina (HPA)
  • Formed by mother nature like diamonds
  • Colour from impurities
  • Extremely hard – no. 9 on Mohs scale
  • Third hardest mineral behind diamond
  • Scratch-resistant artificial sapphire glass made from HPA

What is HPA? 

  • Purified alumina (Al2O3)
  • Greater than 99.99% (4N) purity
  • Maximum allowable impurities of 100ppm
  • Smelter Grade Alumina (SGA) ~ 99.5% (5,000 ppm impurities mainly sodium)
  • Bayer Process uses sodium hydroxide (NaOH)
  • Sodium impurity is problem for electronics industry

SGA – Smelter Grade Alumina

To read the full presentation, please click here

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